返回值返回WebCameraId
问题描述:
Try
For Each Camera As WebCameraId In frmMain.wcc.GetVideoCaptureDevices
If cbCamera.SelectedItem = Camera.GetHashCode Then
txtCamName.Text = Camera.Name
End If
Next
Catch ex As Exception
MsgBox(ex.Message)
End Try
如何将值返回给webcameraId?返回值返回WebCameraId
答
该命令解决了这个问题
Try
Dim CamId As New List(Of WebCameraId)(frmMain.wcc.GetVideoCaptureDevices())
For Each Camera As WebCameraId In frmMain.wcc.GetVideoCaptureDevices
If cbCamera.SelectedItem = Camera.GetHashCode Then
txtCamName.Text = Camera.Name
txtCamIndex.Text = CamId.IndexOf(Camera)
frmMain.wcc.StartCapture(CamId(txtCamIndex.Text))
End If
Next
Catch ex As Exception
MsgBox("Error 0x03102090Cam" & ex.Message)
End Try
返回相机的价值为CAMID。我现在可以使用SQL数据库中的StartCapture。
你试图返回哪个变量?并花时间参加[参观]并阅读[问] – Mederic